Mini One D R50 W17 Coolant Cooling Water Expansion Tank Bottle 7788761

Mini One D R50 W17 Coolant Cooling Water Expansion Tank Bottle is an original cooling system component from the Expansion tanks category, designed for use in Mini vehicles. This used OEM component ensures proper circulation and compensation of coolant volume, which translates into stable engine operation under various load conditions.

Specifications and technical data

• SKU: 7790634
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7788761
• Substitutable numbers: 17137790634, 7790634, 17137788761, 7788761
• Category: Expansion & Overflow Tanks

Purpose and function in the cooling system

The presented expansion tank is a working element of the cooling system, responsible for the safe storage of fluid and the compensation of its volume changes during engine heating and cooling. A properly selected tank helps maintain stable pressure in the system, reduces the risk of overheating, and facilitates fluid level monitoring.

Thanks to a design consistent with the Mini manufacturer's standard, the tank works with factory hoses, connectors, and mounts, which allows for maintaining the original operating characteristics of the cooling system without the need for modifications.

Construction and fitment for Mini One D R50 W17

Mini One D R50 W17 Coolant Cooling Water Expansion Tank Bottle has been designed as an OEM part, which means it retains the factory shape, connector layout, and mounting points. This facilitates installation in the engine bay and ensures compatibility with factory brackets and accessories.

Original manufacturer markings and assignment to a specific Mini reference allow for precise identification of the part and minimize the risk of selecting an incorrect replacement. The product also has assigned interchangeable numbers, which facilitates compatibility verification in service catalogs and parts selection systems.

Condition, origin, and benefits of choosing a used part

The offered tank comes from the used parts category, which means it has been previously used but retains the functionality required for further operation in the vehicle. This type of component is a good solution for maintenance repairs when the priority is an optimal cost-to-quality ratio while maintaining the original manufacturer's specifications.

Choosing a used OEM tank for a Mini allows you to reduce service costs while maintaining the consistency of the cooling system with factory design assumptions. It is a practical option both for standard replacement of a worn element and for post-accident repairs.

Support with selection and cooling system expansion

If you are planning a comprehensive repair or upgrade of the engine area in your Mini and need other elements from the same group, such as additional tanks, mounting elements, or related cooling system components, check the available parts in the Mini expansion tanks category.

To maximize the potential of used parts and ensure their long-term operation in the vehicle, it is worth familiarizing yourself with practical tips regarding maintenance and operation described in the article How to extend the life of used car parts?.

Summary

Mini One D R50 W17 Coolant Cooling Water Expansion Tank Bottle is a functional, original cooling system element dedicated to Mini vehicles. The used OEM component allows for maintaining factory engine operating parameters, ensures proper coolant volume compensation, and provides an economical solution for service repairs and restoring system efficiency after a failure.